mirror of
https://github.com/alextselegidis/easyappointments.git
synced 2024-11-15 12:33:01 +03:00
461 lines
16 KiB
PHP
461 lines
16 KiB
PHP
<?php defined('BASEPATH') or exit('No direct script access allowed');
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/* ----------------------------------------------------------------------------
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* Easy!Appointments - Online Appointment Scheduler
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*
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* @package EasyAppointments
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* @author A.Tselegidis <alextselegidis@gmail.com>
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* @copyright Copyright (c) Alex Tselegidis
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* @license https://opensource.org/licenses/GPL-3.0 - GPLv3
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* @link https://easyappointments.org
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* @since v1.0.0
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* ---------------------------------------------------------------------------- */
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use Google\Service\Calendar\Event;
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use Google\Service\Calendar\Events;
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/**
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* Google sync library.
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*
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* Handles Google Calendar API related functionality.
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*
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* @package Libraries
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*/
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class Google_sync
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{
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/**
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* @var EA_Controller|CI_Controller
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*/
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protected EA_Controller|CI_Controller $CI;
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/**
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* @var Google_Client
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*/
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protected Google_Client $client;
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/**
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* @var Google_Service_Calendar
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*/
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protected Google_Service_Calendar $service;
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/**
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* Google_sync constructor.
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*
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* This method initializes the Google client class and the Calendar service class so that they can be used by the
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* other methods.
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*/
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public function __construct()
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{
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$this->CI = &get_instance();
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$this->CI->load->model('appointments_model');
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$this->CI->load->model('customers_model');
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$this->CI->load->model('providers_model');
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$this->CI->load->model('services_model');
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$this->initialize_clients();
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}
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/**
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* Initialize the client, so that existing execution errors are not passed from one provider to another.
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*/
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public function initialize_clients(): void
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{
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$http = new GuzzleHttp\Client([
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'verify' => false,
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]);
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$this->client = new Google_Client();
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$this->client->setHttpClient($http);
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$this->client->setApplicationName('Easy!Appointments');
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$this->client->setClientId(config('google_client_id'));
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$this->client->setClientSecret(config('google_client_secret'));
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$this->client->setRedirectUri(site_url('google/oauth_callback'));
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$this->client->setPrompt('consent');
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$this->client->setAccessType('offline');
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$this->client->addScope([Google_Service_Calendar::CALENDAR]);
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$this->service = new Google_Service_Calendar($this->client);
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}
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/**
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* Get Google OAuth authorization url.
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*
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* This url must be used to redirect the user to the Google user consent page,
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* where the user grants access to his data for the Easy!Appointments app.
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*/
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public function get_auth_url(): string
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{
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// The "max_auth_age" is needed because the user needs to always log in and not use an existing session.
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return $this->client->createAuthUrl() . '&max_auth_age=0';
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}
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/**
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* Authenticate the Google API usage.
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*
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* When the user grants consent for his data usage, Google is going to redirect the browser back to the given
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* redirect URL. There an authentication code is provided. Using this code, we can authenticate the API usage and
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* store the token information to the database.
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*
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* @param string $code
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*
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* @return array
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*
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* @throws Exception
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*/
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public function authenticate(string $code): array
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{
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$response = $this->client->fetchAccessTokenWithAuthCode($code);
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if (isset($response['error'])) {
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throw new RuntimeException(
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'Google Authentication Error (' . $response['error'] . '): ' . $response['error_description'],
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);
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}
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return $response;
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}
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/**
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* Refresh the Google Client access token.
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*
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* This method must be executed every time we need to make actions on a provider's Google Calendar account. A new
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* token is necessary and the only way to get it is to use the stored refresh token that was provided when the
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* provider granted consent to Easy!Appointments for use his Google Calendar account.
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*
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* @param string $refresh_token The provider's refresh token. This value is stored in the database and used every
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* time we need to make actions to his Google Calendar account.
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*/
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public function refresh_token(string $refresh_token): void
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{
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$this->initialize_clients();
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$this->client->refreshToken($refresh_token);
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}
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/**
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* Add an appointment record to its providers Google Calendar account.
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*
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* This method checks whether the appointment's provider has enabled the Google Sync utility of Easy!Appointments
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* and the stored access token is still valid. If yes, the selected appointment record is going to be added to the
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* Google Calendar account.
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*
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* @param array $appointment Appointment data.
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* @param array $provider Provider data.
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* @param array $service Service data.
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* @param array $customer Customer data.
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* @param array $settings Required settings.
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*
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* @return Event Returns the Google_Event class object.
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*
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* @throws Exception
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*/
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public function add_appointment(
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array $appointment,
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array $provider,
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array $service,
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array $customer,
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array $settings,
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): Event {
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$event = new Google_Service_Calendar_Event();
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$event->setSummary(!empty($service) ? $service['name'] : 'Unavailable');
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$event->setDescription($appointment['notes']);
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$event->setLocation($appointment['location'] ?? $settings['company_name']);
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$timezone = new DateTimeZone($provider['timezone']);
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$start = new Google_Service_Calendar_EventDateTime();
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$start->setDateTime(
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(new DateTime($appointment['start_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setStart($start);
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$end = new Google_Service_Calendar_EventDateTime();
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$end->setDateTime((new DateTime($appointment['end_datetime'], $timezone))->format(DateTimeInterface::RFC3339));
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$event->setEnd($end);
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$event->attendees = [];
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$event_provider = new Google_Service_Calendar_EventAttendee();
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$event_provider->setDisplayName($provider['first_name'] . ' ' . $provider['last_name']);
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$event_provider->setEmail($provider['email']);
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$event->attendees[] = $event_provider;
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if (!empty($customer['first_name']) && !empty($customer['last_name']) && !empty($customer['email'])) {
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$event_customer = new Google_Service_Calendar_EventAttendee();
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$event_customer->setDisplayName($customer['first_name'] . ' ' . $customer['last_name']);
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$event_customer->setEmail($customer['email']);
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$event->attendees[] = $event_customer;
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}
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// Add the new event to the Google Calendar.
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return $this->service->events->insert($provider['settings']['google_calendar'], $event);
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}
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/**
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* Update an existing appointment that is already synced with Google Calendar.
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*
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* This method updates the Google Calendar event item that is connected with the provided appointment record of
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* Easy!Appointments.
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*
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* @param array $appointment Appointment data.
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* @param array $provider Provider data.
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* @param array $service Service data.
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* @param array $customer Customer data.
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* @parma array $settings Required settings.
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*
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* @return Event Returns the Google_Service_Calendar_Event class object.
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*
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* @throws Exception
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*/
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public function update_appointment(
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array $appointment,
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array $provider,
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array $service,
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array $customer,
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array $settings,
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): Event {
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$event = $this->service->events->get(
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$provider['settings']['google_calendar'],
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$appointment['id_google_calendar'],
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);
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$event->setSummary($service['name']);
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$event->setDescription($appointment['notes']);
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$event->setLocation($appointment['location'] ?? $settings['company_name']);
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$timezone = new DateTimeZone($provider['timezone']);
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$start = new Google_Service_Calendar_EventDateTime();
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$start->setDateTime(
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(new DateTime($appointment['start_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setStart($start);
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$end = new Google_Service_Calendar_EventDateTime();
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$end->setDateTime((new DateTime($appointment['end_datetime'], $timezone))->format(DateTimeInterface::RFC3339));
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$event->setEnd($end);
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$event->attendees = [];
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$event_provider = new Google_Service_Calendar_EventAttendee();
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$event_provider->setDisplayName($provider['first_name'] . ' ' . $provider['last_name']);
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$event_provider->setEmail($provider['email']);
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$event->attendees[] = $event_provider;
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if (!empty($customer['first_name']) && !empty($customer['last_name']) && !empty($customer['email'])) {
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$event_customer = new Google_Service_Calendar_EventAttendee();
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$event_customer->setDisplayName($customer['first_name'] . ' ' . $customer['last_name']);
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$event_customer->setEmail($customer['email']);
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$event->attendees[] = $event_customer;
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}
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return $this->service->events->update($provider['settings']['google_calendar'], $event->getId(), $event);
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}
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/**
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* Delete an existing appointment from Google Calendar.
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*
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* @param array $provider Provider data.
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* @param string $google_event_id The Google Calendar event ID to be removed.
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*/
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public function delete_appointment(array $provider, string $google_event_id): void
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{
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$this->service->events->delete($provider['settings']['google_calendar'], $google_event_id);
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}
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/**
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* Add unavailability period event to Google Calendar.
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*
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* @param array $provider Provider data.
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* @param array $unavailability Unavailable data.
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*
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* @return Google_Service_Calendar_Event Returns the Google event.
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*
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* @throws Exception
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*/
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public function add_unavailability(array $provider, array $unavailability): Google_Service_Calendar_Event
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{
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$event = new Google_Service_Calendar_Event();
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$event->setSummary('Unavailable');
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$event->setDescription($unavailability['notes']);
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$timezone = new DateTimeZone($provider['timezone']);
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$start = new Google_Service_Calendar_EventDateTime();
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$start->setDateTime(
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(new DateTime($unavailability['start_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setStart($start);
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$end = new Google_Service_Calendar_EventDateTime();
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$end->setDateTime(
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(new DateTime($unavailability['end_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setEnd($end);
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// Add the new event to the Google Calendar.
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return $this->service->events->insert($provider['settings']['google_calendar'], $event);
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}
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/**
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* Update Google Calendar unavailability period event.
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*
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* @param array $provider Provider data.
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* @param array $unavailability Unavailability data.
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*
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* @return Google_Service_Calendar_Event Returns the Google_Service_Calendar_Event object.
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*
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* @throws Exception
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*/
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public function update_unavailability(array $provider, array $unavailability): Google_Service_Calendar_Event
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{
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$event = $this->service->events->get(
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$provider['settings']['google_calendar'],
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$unavailability['id_google_calendar'],
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);
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$event->setSummary('Unavailable');
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$event->setDescription($unavailability['notes']);
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$timezone = new DateTimeZone($provider['timezone']);
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$start = new Google_Service_Calendar_EventDateTime();
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$start->setDateTime(
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(new DateTime($unavailability['start_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setStart($start);
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$end = new Google_Service_Calendar_EventDateTime();
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$end->setDateTime(
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(new DateTime($unavailability['end_datetime'], $timezone))->format(DateTimeInterface::RFC3339),
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);
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$event->setEnd($end);
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return $this->service->events->update($provider['settings']['google_calendar'], $event->getId(), $event);
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}
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/**
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* Delete unavailability period event from Google Calendar.
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*
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* @param array $provider Provider data.
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* @param string $google_event_id Google Calendar event ID to be removed.
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*/
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public function delete_unavailability(array $provider, string $google_event_id): void
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{
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$this->service->events->delete($provider['settings']['google_calendar'], $google_event_id);
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}
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/**
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* Get a Google Calendar event.
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*
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* @param array $provider Provider data.
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* @param string $google_event_id Google Calendar event ID.
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*
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* @return Event Returns the Google Calendar event.
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*/
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public function get_event(array $provider, string $google_event_id): Event
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{
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return $this->service->events->get($provider['settings']['google_calendar'], $google_event_id);
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}
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/**
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* Get all the events between the sync period.
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*
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* @param string $google_calendar The name of the Google Calendar to be used.
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* @param string $start The start date of sync period.
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* @param string $end The end date of sync period.
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*
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* @return Events Returns a collection of events.
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*/
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public function get_sync_events(string $google_calendar, string $start, string $end): Events
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{
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$params = [
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'timeMin' => date(DateTimeInterface::RFC3339, $start),
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'timeMax' => date(DateTimeInterface::RFC3339, $end),
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'singleEvents' => true,
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];
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return $this->service->events->listEvents($google_calendar, $params);
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}
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/**
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* Return available Google Calendars for specific user.
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*
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* The given user's token must already exist in db in order to get access to his
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* Google Calendar account.
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*
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* @return array Returns an array with the available calendars.
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*/
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public function get_google_calendars(): array
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{
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$calendar_list = $this->service->calendarList->listCalendarList();
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$calendars = [];
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foreach ($calendar_list->getItems() as $google_calendar) {
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if ($google_calendar->getAccessRole() === 'reader') {
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continue;
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}
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$calendars[] = [
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'id' => $google_calendar->getId(),
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'summary' => $google_calendar->getSummary(),
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];
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}
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return $calendars;
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}
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/**
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* Get the Add-To-Google-URL, that can be used by anyone to quickly add the event to Google Calendar (no API needed).
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*
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* @param int $appointment_id
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*
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* @return string
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*
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* @throws Exception
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*/
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public function get_add_to_google_url(int $appointment_id): string
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{
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$appointment = $this->CI->appointments_model->find($appointment_id);
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$service = $this->CI->services_model->find($appointment['id_services']);
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$provider = $this->CI->providers_model->find($appointment['id_users_provider']);
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$customer = $this->CI->customers_model->find($appointment['id_users_customer']);
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$provider_timezone_instance = new DateTimeZone($provider['timezone']);
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$utc_timezone_instance = new DateTimeZone('UTC');
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$appointment_start_instance = new DateTime($appointment['start_datetime'], $provider_timezone_instance);
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$appointment_start_instance->setTimezone($utc_timezone_instance);
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$appointment_end_instance = new DateTime($appointment['end_datetime'], $provider_timezone_instance);
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$appointment_end_instance->setTimezone($utc_timezone_instance);
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$add = [$provider['email']];
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if (!empty($customer['email'])) {
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$add[] = $customer['email'];
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}
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$add_to_google_url_params = [
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'action' => 'TEMPLATE',
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'text' => $service['name'],
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'dates' =>
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$appointment_start_instance->format('Ymd\THis\Z') .
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'/' .
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$appointment_end_instance->format('Ymd\THis\Z'),
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'location' => setting('company_name'),
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'details' => 'View/Change Appointment: ' . site_url('booking/reschedule/' . $appointment['hash']),
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'add' => implode(', ', $add),
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];
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return 'https://calendar.google.com/calendar/render?' . http_build_query($add_to_google_url_params);
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}
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}
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